# Oz Farmer vs tValue

The clearest difference is price: tValue at Free against Oz Farmer's $0.99. Oz Farmer's advantage is iOS requirement (12.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

tValue is free to download; Oz Farmer costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oz Farmer ships an update every 14 months, tValue every 9 months. The most recent releases landed on August 18, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Oz Farmer | tValue |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tvalue/id1082227470/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 9 months** |
| Monetization | Paid | **Free** |
| Size | 7 MB | 1 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stealth Productions Limited](https://appshunter.io/developer/571321895) | [David Bourne](https://appshunter.io/developer/1031086386) |

## What reviewers say

### Oz Farmer

[App page](https://appshunter.io/ios/app/oz-farmer/id804310382)

This app helps farmers with daily calculations and record-keeping. It offers tools for spray calibration, chemical treatment tracking with safe slaughter/feed date calculations, a gestation calculator for livestock, and unit conversions.

**Highlights:** Spray calibration tools, Chemical treatment records, Safe slaughter/feed date calculation, Gestation calculator, Unit conversion calculator, Email export of records

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### tValue

[App page](https://appshunter.io/ios/app/tvalue/id1082227470)

Calculate unpaired Student t Values quickly using mean, standard deviation, and sample size. It also supports calculating t values for differences from zero or a specified value. Use difference values for Set 1 and leave Set 2 blank for paired t tests.

**Highlights:** Calculate unpaired Student t Values, Calculate t values for difference from zero, Calculate t values for difference from specified value, Supports paired t tests, Input mean, standard deviation, and n

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oz Farmer free?

Oz Farmer costs $0.99, with no in-app purchases.

### Is tValue free?

tValue is free to download, with no in-app purchases.

### Do Oz Farmer or tValue have ads?

Neither Oz Farmer nor tValue shows ads.

### Which is updated more often, Oz Farmer or tValue?

Oz Farmer ships an update every 14 months, and tValue every 9 months. Most recently, Oz Farmer was updated on August 18, 2026 and tValue on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*